CN208364269U - A kind of engine noise reducer and engine - Google Patents
A kind of engine noise reducer and engine Download PDFInfo
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- CN208364269U CN208364269U CN201820692454.3U CN201820692454U CN208364269U CN 208364269 U CN208364269 U CN 208364269U CN 201820692454 U CN201820692454 U CN 201820692454U CN 208364269 U CN208364269 U CN 208364269U
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Abstract
The utility model relates to a kind of engine noise reducer and engines, belong to technical field of vehicle, the engine noise reducer includes tracheae, is provided with resonant cavity on the tracheae, and the resonant cavity includes cavity and the air inlet pipe and an air outlet pipe that is respectively arranged on the cavity.The utility model is by being arranged resonant cavity on engine tracheae, gas enters from cavity one end, other end discharge, energy attenuation can be generated in the cavity, to reduce the noise of engine generation, meanwhile, it is optimized by the structure to tracheae, exhaust emissions amount is also reduced, to meet the emission request of tail gas.
Description
Technical field
The utility model relates to technical field of vehicle more particularly to a kind of engine noise reducers and engine.
Background technique
With the fast development of automobile industry, the requirement to automotive energy-saving emission-reducing is proposed, most of fuel system
Although design has reached discharge standard, there are still the big problems of noise.Specifically, existing fuel system includes fuel oil
Pipe and engine tracheae, wherein fuel pipe and engine tracheae are fixed on body of a motor car metal plate by pipeline backplate, engine
One end air inlet of tracheae, other end outlet, still, engine in the process of moving, due to the fluctuation of air-flow, often result in and start
Machine noise is very big.Therefore, the noise that engine generates in the process of moving is still a great problem in the prior art greatly.
Utility model content
The purpose of this utility model is that proposing a kind of engine noise reducer and engine, it is able to solve in the prior art
The big technical problem of the noise that engine generates in the process of moving.
For this purpose, the utility model uses following technical scheme:
A kind of engine noise reducer, including tracheae are provided with resonant cavity on the tracheae, and the resonant cavity includes cavity
And it is respectively arranged at the air inlet pipe and an air outlet pipe on the cavity.
Further, the air inlet pipe and the escape pipe are located at the both ends of the cavity.
Further, several partitions are provided in the cavity, the cavity is isolated into multiple connections by the partition
Chamber.
Further, the quantity of the partition is two, including first partition and second partition, the first partition and institute
It states second partition and is collinearly spaced setting.
Further, the first partition and the second partition are parallel with the axis of the air inlet pipe, and are located at institute
State the same side of axis.
Further, third partition and the 4th partition, the third partition and the described 4th are additionally provided in the cavity
Partition is T font structure, the third partition and the 4th baffle interval setting, and is located at the first partition and described
Between second partition.
Further, the cavity includes the first cavity and the second cavity for being connected to first cavity, and described first
Partition is set in first cavity, and the second partition is set in second cavity；
The air inlet pipe is set on first cavity, and the escape pipe is set on second cavity.
Further, the first connected unit is provided on first cavity, second cavity is provided with the second connected unit,
First connected unit is connected with second connected unit.
Further, positioning step is circumferentially offered in first connected unit, second connected unit presses on described
Positioning step.
The utility model additionally provides a kind of engine, including above-mentioned engine noise reducer.
The utility model has the beneficial effects that
The utility model is entered by the way that resonant cavity, gas are arranged on engine tracheae from cavity one end, other end row
Out, energy attenuation can be generated in the cavity, so that the noise of engine generation is reduced, meanwhile, it is carried out by the structure to tracheae
Optimization, also reduces exhaust emissions amount, to meet the emission request of tail gas.In addition, the utility model on tracheae by setting
Resonant cavity is set, existing backplate space is made full use of under the premise of not changing vehicle body sheet metal, guard board structure, carries out the shape of product
Building, enables to the influence for avoiding resonant cavity to existing each Assembly part to greatest extent.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of engine noise reducer provided by the utility model；
Fig. 2 is the cross-sectional view of the resonant cavity of engine noise reducer provided by the utility model；
Fig. 3 is enlarged drawing of the Fig. 2 at I.
In figure:
10, tracheae；20, fuel pipe；
1, resonant cavity；11, cavity；111, the first cavity；1111, the first connected unit；1112, positioning step；1113, melt
Slot；112, the second cavity；1121, the second connected unit；12, air inlet pipe；13, escape pipe；
21, first partition；22, second partition.
Specific embodiment
In order to enable those skilled in the art to better understand the technical solutions of the present invention, with reference to the accompanying drawing and pass through
Specific embodiment further illustrates the technical solution of the utility model.
Embodiment one
A kind of engine noise reducer is present embodiments provided, as shown in Figure 1-Figure 3, which includes gas
Pipe 10, is provided with resonant cavity 1 on tracheae 10, and resonant cavity 1 includes cavity 11 and 12 He of air inlet pipe that is respectively arranged on cavity 11
Escape pipe 13.Wherein, air inlet pipe 12 and escape pipe 13 are located at the both ends of cavity 11, and are correspondingly arranged.
The present embodiment is entered by the way that resonant cavity 1, gas are arranged on engine tracheae from 11 one end of cavity, other end row
Out, energy attenuation can be generated in cavity 11, so that the noise of engine generation is reduced, meanwhile, pass through the structure to tracheae 10
It optimizes, also reduces exhaust emissions amount, to meet the emission request of tail gas.In addition, the present embodiment passes through in tracheae 10
Upper setting resonant cavity 1 makes full use of existing backplate space under the premise of not changing vehicle body sheet metal, guard board structure, carries out product
Shape building, enable to the influence for avoiding resonant cavity 1 to existing each Assembly part to greatest extent.
In addition, can be provided with several partitions in the present embodiment in above-mentioned cavity 11, cavity 11 is isolated by partition
The chamber of multiple connections is effectively reduced noise to ensure that so that gas is decayed in different chambers.
The quantity of partition is two, including first partition 21 and second partition 22, and first partition 21 and second partition 22 are total
The setting of line interval.First partition 21 and second partition 22 are parallel with the axis of air inlet pipe 12 in the present embodiment, and are located at axis
The same side.Due to being provided with gap between first partition 21 and second partition 22, so that multiple chambers are isolated in cavity 11,
The energy of the gas in cavity 11 is further made to obtain effective attenuation, to realize the effect of noise reduction.Wherein, first every
Plate 21 and second partition 22 are located at the same side of air inlet pipe 12, to guarantee regular supply of the tracheae to the gas of fuel system.
It should be noted that size and first partition 21 and second of the present embodiment to first partition 21 and second partition 22
Specific location of the partition 22 in cavity 11 is not construed as limiting, and can be adjusted according to actual needs.
Cavity 11 includes the first cavity 111 and the second cavity 112 for being connected to the first cavity 111, and first partition 21 is arranged
In in the first cavity 111, second partition 22 is set in the second cavity 112；Air inlet pipe 12 is set on the first cavity 111, out
Tracheae 13 is set on the second cavity 112, and wherein, the first cavity 111 and the second cavity 112 are provided with opening, the first cavity
111 opening with the opening face of the second cavity 112 and be connected to.
Wherein, the bottom surface of the second cavity 112 is arcuate structure, plays buffer function to the gas in cavity 11.
Further, the open end of the first cavity 111 is circumferentially provided with the first connected unit 1111, and the second cavity 112 is opened
Mouth end is circumferentially provided with the second connected unit 1121, the first connected unit 1111 and the connection of the second connected unit 1121, the first connected unit
Positioning step 1112 is circumferentially offered on 1111, the second connected unit 1121 presses on positioning step 1112 and by plastics Laser Welding
The mode connect connects.Wherein, the first cavity 111 is formed using light absorptive plastic production, and the second cavity 112 uses translucency plastics
It is made, to facilitate welding.In addition, passing through setting positioning step 1112, it is ensured that the first cavity 111 and the second cavity 112
Welding position reaches expected requirement, to improve welding precision.
Plastics laser welding is that the first connected unit 1111 and the second connected unit 1121 are melted again by heating using laser
The weld strength of the connection type of fusion, welding method forming can be close to the intensity of even more than raw material.In addition, plastics
Resin less degradation, generation clast are few in laser beam welding, can avoid the cleaning of welding rear chamber 11 to greatest extent.
After completing to weld to cavity 11, the weld strength to cavity 11 is needed to test, specifically, into cavity 11
It is continually fed into gas, carries out persistent pressure, until cavity 11 ruptures, if welding region is complete, the welding of cavity 11 is up to standard.
In addition, needing the welded seal test to cavity 11, specifically, cavity 11 after completing to weld to cavity 11
It is kept for 10 seconds under 3bar atmospheric pressure, integral pressure drop control is within 0.002bar, then product is considered as qualification.
The present embodiment is by the first connected unit 1111 of setting and the second connected unit 1121, convenient for positioning tool in welding process
Product is carried out to continue pressure.
In addition, it is provided with gap between the end face of the open end of the first connected unit 1111 and the second cavity 112, the gap shape
At melting trough 1113, in welding, melting trough 1113 is used to accommodate flash for the first connected unit 1111 and the second connected unit 1121, from
And keep the cleaning in cavity 11.
As shown in Figure 1, being provided with chuck (not shown) on the side wall of the first cavity 111, the chuck is for fixed combustion
Oil pipe 20, pipeline backplate wrap in outside cavity 11, make full use of to realize to backplate space, enable to keep away to greatest extent
Exempt from influence of the resonant cavity 1 to existing each Assembly part.
The present embodiment additionally provides a kind of engine, including above-mentioned engine noise reducer.
Real number example two
A kind of engine noise reducer is present embodiments provided, specifically, present embodiments provides another form
Partition, the partition include first partition 21, second partition 22, third partition and the 4th partition, wherein third partition and the 4th every
Plate is T font structure, including the first connecting plate and is vertically connected at the second connecting plate of the first connection, the first connecting plate and
The setting of one partition, 21 parallel interval, the second connecting plate and 22 parallel interval of second partition are arranged.
Third partition is set in the first cavity 111, and the 4th partition is set in the second cavity 112, and third partition and
4th partition is set between first partition 21 and second partition 22.
It should be noted that size of the present embodiment to first partition 21, second partition 22, third partition and the 4th partition
And the specific location in cavity 11 is not construed as limiting, and can be adjusted according to actual needs.In addition, the third in the present embodiment
Partition and the 4th partition can also be other structures, and this embodiment is not limited.
Other structures in the present embodiment are identical as the structure in embodiment one, and this is no longer going to repeat them.
The present embodiment additionally provides a kind of engine, which includes above-mentioned engine noise reducer.
Note that have been shown and described above the utility model basic principles and main features and the utility model it is excellent
Point.It should be understood by those skilled in the art that the utility model is not limited to the embodiments described above, above embodiment and say
Only illustrate the principles of the present invention described in bright book, on the premise of not departing from the spirit and scope of the utility model, this
Utility model will also have various changes and improvements, and these various changes and improvements fall within the scope of the claimed invention,
The claimed range of the utility model is defined by the appending claims and its equivalent thereof.
Claims (10)
1. a kind of engine noise reducer, including tracheae (10), which is characterized in that be provided with resonant cavity on the tracheae (10)
(1), the resonant cavity (1) includes cavity (11) and the air inlet pipe (12) and escape pipe that are respectively arranged on the cavity (11)
(13)。
2. engine noise reducer according to claim 1, which is characterized in that the air inlet pipe (12) and the escape pipe
(13) both ends of the cavity (11) are located at.
3. engine noise reducer according to claim 2, which is characterized in that be provided with several in the cavity (11)
The cavity (11) is isolated into the chamber of multiple connections by partition, the partition.
4. engine noise reducer according to claim 3, which is characterized in that the quantity of the partition is two, including
First partition (21) and second partition (22), the first partition (21) and the second partition (22) are conllinear and interval is arranged.
5. engine noise reducer according to claim 4, which is characterized in that the first partition (21) and described second
Partition (22) is parallel with the axis of the air inlet pipe (12), and is located at the same side of the axis.
6. engine noise reducer according to claim 4, which is characterized in that be additionally provided with third in the cavity (11)
Partition and the 4th partition, the third partition and the 4th partition are T font structure, the third partition and the described 4th
Baffle interval setting, and between the first partition (21) and the second partition (22).
7. engine noise reducer according to claim 4, which is characterized in that the cavity (11) includes the first cavity
(111) with the second cavity (112) for being connected to first cavity (111), the first partition (21) is set to first chamber
In body (111), the second partition (22) is set in second cavity (112)；
The air inlet pipe (12) is set on first cavity (111), and the escape pipe (13) is set to second cavity
(112) on.
8. engine noise reducer according to claim 7, which is characterized in that be provided on first cavity (111)
First connected unit (1111), second cavity (112) are provided with the second connected unit (1121), first connected unit (1111)
It is connected with second connected unit (1121).
9. engine noise reducer according to claim 8, which is characterized in that circumferential on first connected unit (1111)
It offers positioning step (1112), second connected unit (1121) presses on the positioning step (1112).
10. a kind of engine, which is characterized in that including the described in any item engine noise reducers of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820692454.3U CN208364269U (en) | 2018-05-10 | 2018-05-10 | A kind of engine noise reducer and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820692454.3U CN208364269U (en) | 2018-05-10 | 2018-05-10 | A kind of engine noise reducer and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208364269U true CN208364269U (en) | 2019-01-11 |
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ID=64934076
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820692454.3U Active CN208364269U (en) | 2018-05-10 | 2018-05-10 | A kind of engine noise reducer and engine |
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|---|---|
| CN (1) | CN208364269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412649A (en) * | 2018-05-10 | 2018-08-17 | 上海亿泊材料应用技术有限公司 | A kind of engine noise reducer and engine |
-
2018
- 2018-05-10 CN CN201820692454.3U patent/CN208364269U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412649A (en) * | 2018-05-10 | 2018-08-17 | 上海亿泊材料应用技术有限公司 | A kind of engine noise reducer and engine |
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Address after: 201806 area B and D, 1st floor, building 1, 569 xigangshen Road, Jiading District, Shanghai Patentee after: SHANGHAI YIBO MATERIAL APPLICATION TECHNOLOGY Co.,Ltd. Address before: 200433 room C302, block B, building 12, 128 Xiangyin Road, Yangpu District, Shanghai Patentee before: SHANGHAI YIBO MATERIAL APPLICATION TECHNOLOGY Co.,Ltd. |
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